Patch notes v0.8.4374715

# Player Characters & Weapons
Byleth: the Berserk skill now consumes 50 MP to enter a berserk state (juggernaut, increases attack power by 50%, stamina recovery by 100%, speed by 50%) for 30 seconds.
Kharoum: attack power +50% decreases to +40%, initial max MP decreases from 100 to 80.
Japhriel: fix a texture problem.
Kunai: show hint message when throwing daggers without charge points; remove charge points after death.
Polearm series: Fix an issue that attacks follows grab attack might trigger one more hit.
Sledgehammer series: the damage factor of charge attack increases from 1.7 to 2.
# Items & Artifacts
Greedy Spirit, Mouse Spirit: these two non-combat spirits no longer belong to the Beastmaster Set.
Dragon Slayer: fix description to Attack Power +15%, Max HP +30.
# BOSS
Adjust the rage burst mechanism to prevent repeated triggering the burst animation.
Add "Forced Damage Decrease" attribute to prevent the rage burst armor be fully neutralized by all kinds of damage increase effects.
# Misc
Improve localized text.
Various small adjustments in order to prepare for the implementation of a new batch of items and artifacts.
Fix the problem that sometimes the attack power is reduced by 1.
Modify the appearance of Xilvaron in the game title screen.